Scissor sharpener rest for wheel grinders



Aug. 21, 1951 v. AMEN DOLA 2,565,291

SCISSOR SHARPENER REST FOR WHEEL GRINDERS Filed Feb. 24, 1949 INVENTORJAMES V.AMENDOLA ATTORNEYS Patented Aug. 21, 1951 SCISSOR SHARPENER RESTFOR WHEEL GRINDERS James V. Amendola, Kenosha, Wis.

Application February 24, 1949, Serial No. 78,047

1 Claim.

My invention refers to scissors grinders, and more particularly to ascissor sharpener rest for the scissors grinder shown and described inmy prior Patent No. 2,518,111 issued to me August 8, 1950.

The object of my present invention is to provide a simple and effectiveadjustable supporting track attachment for a wheel grinder, whereby myscissors grinder clamp disclosed in the above patent may be reciprocatedback and forth against the abrading wheel to facilitate the sharp eningof scissors or shears by the ordinary layman.

With the above and other objects in view, which will appear as thedescription proceeds, the invention resides in the novel construction,combination and arrangement of parts, substantially as hereinafterdescribed, and more particularly defined by the appended claim, it beingunderstood that such changes in the precise embodiment of the hereindisclosed invention may be made as come Within the scope of the claim.

In the accompanying drawings is illustrated one complete example of thephysical embodiment of the present invention constructed according tothe best mode so far devised for the practical application of theprinciples thereof.

In the drawings:

Figure 1 represents an end elevation of an abrading wheel and a scissorsgrinder attached thereto embodying the feature of my invention, the viewbeing partly in section as indicated by line l-I of Figure 3.

Figure 2 is a plan view of the grinder having attached thereto a trackrest embodying the features of my invention.

Figure 3 is a longitudinal sectional elevation of a grinder wheel andtrack associated with my scissors grinder clamp, parts being in sectionas indicated by line 33 of Figure 1; and

Figure 4 is a detail sectional elevation of the supporting rest joint,this section being indicated by line 44 of Figure 1.

Referring by characters to the drawings, A indicates a table havingclamped thereto a gear housing B, the same having journaled therein anabrasive wheel C that is driven by a crank D.

The housing has extended therefrom a standard slotted ear F to which isfitted a tool rest G by means of a bolt H.

To accommodate this grinder for use in connection with my scissorsgrinder clamp, I provide an auxiliary track strip I, having an upturnedinner flange 2 extending transversely of the wheel 3.

The track is secured by screws 33 to the upper face of the tool rest G.In order to properly adjust the track with relation to the abradingwheel, the tool rest is swung in either direction upon its pivot bolt H.

My scissors grinder, as indicated in Figures 1 and 3 of the drawings andmore fully set forth in my prior patent 2,518,111, is then adjusted tothe abrading wheel by seating the end of a guide leaf 4 into the grooveof the track I.

This guide leaf 4 has hinged thereto a blade carrying leaf 5, betweenwhich leaf and a clip 6 the blade I of a pair of shears is clamped, itbeing understood that the hinged leaves 4 and 5 are adjusted as to theirangle and locked by a set screw 1. Hence, it is apparent, in order togrind the scissors blade, the abrading wheel is put into motion, in thedirection of the arrow (Fig. 1), and the scissors blade I is brought torest upon the face of the grinder wheel while the guide leaf 4 issocketed within the groove track and thereafter by reciprocating thescissors grinder back and forth, with reference to the face of the wheeland the track I, the said blade is quickly sharpened and the sharpenedbeveled face of the blade is determined by adjustment with relation tothe hinged leaves 4 and 5.

Changes in details may be made without departing from the spirit or thescope of this invention, but what I claim as new is:

In combination with a grinding machine of the type having a housing, agrinding wheel rotatable on the housing and a slotted ear extendingoutwardly from the housing, of a scissor sharpener rest for slidably androckably supporting a scissor grinder clamp including a pair of hingedlyconnected leaves with one leaf supporting the scissor blade andextending toward the grinding wheel comprising, a tool rest adjustablysupported by the slotted ear, a supporting track strip carried by thetool rest and extending transversely across the grinding wheel, saidtrack strip having an upturned arcuate guide flange on its forward edgeadjacent the grinding wheel, the outer extremity of the upturned arcuateguide flange being inclined away from the central vertical axis of thegrinding wheel forming a rounded inner seat rest, the lower edge of theother of said leaves of the scissor grinder clamp being supported on thetrack strip and engaging said rounded inner seat rest, whereby thescissor grinder clamp will be slidably and rockably supported by thetrack strip and its upturned arcuate guide flange.

JAMES v. AMEN'DOILA.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 694,387 Johnston Mar. 4, 1902845,487 Strehl Feb. 26, 1907 1,314,304 Clark Aug. 26, 1919 1,773,448Davidson Aug. 19, 1930 2,008,943 Bodey July 23, 1935 2,052,837 MakaroffSept. 1, 1936 2,153,476 Norman Apr. 4, 1939 2,458,347 Christiansen Jan.4, 1949 2,518,111 Amendola Aug. 8, 1950

